Outline
I have a problem with a new computer where there are no visible wireless networks in the network settings and I am unable to connect to them. The computer is a Lenovo v14-IIL with a Realtek device c82f, the Realtek 8822CE.
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Done so far
When booting Ubuntu 18.04 to this computer it first did not show any possibility to even connect to a wireless network. I used the answer from this thread: https://askubuntu.com/questions/1216...vice-rtl8822ce, and it helped with enabling the wireless network card to be visible. But now the problem still persists in that I can't connect to any wifi.
When trying to select a network it just says "No Networks". I've gone through other thread to try and find the answer. So far I've run these commands and gotten this:
lspci -nnk | grep 0280 -A3
01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:c82f]
Subsystem: Lenovo Device [17aa:c02f]
Kernel driver in use: rtw_pci
Kernel modules: rtwpci
rfkill list all
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
2: ideapad_bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
sudo lshw -C network
*-network
description: Wireless interface
product: Realtek Semiconductor Co., Ltd.
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlp1s0
version: 00
serial: 28:39:26:c4:51:39
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtw_pci driverversion=5.7.0-rc3+ firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:137 ioport:4000(size=256) memory:94000000-9400ffff
dmesg | grep -i rtw_pci
[ 25.398709] rtw_pci 0000:01:00.0: enabling device (0000 -> 0003)
[ 25.407821] rtw_pci 0000:01:00.0: Firmware version 7.3.0, H2C version 14
[ 25.408830] rtw_pci 0000:01:00.0: Firmware version 7.3.0, H2C version 14
[ 25.533550] rtw_pci 0000:01:00.0 wlp1s0: renamed from wlan0
[ 26.793496] rtw_pci 0000:01:00.0: start vif 28:39:26:c4:51:39 on port 0
Fist the firmware did not work so I updated it to the latest version and now it doesn't give any errors and shows this.
inxi -Fxz
System: Host: usrname-Lenovo-V14-IIL Kernel: 5.7.0-rc3+ x86_64
bits: 64 gcc: 7.5.0
Desktop: Gnome 3.28.4 (Gtk 3.22.30-1ubuntu4)
Distro: Ubuntu 18.04.4 LTS
Machine: Device: laptop System: LENOVO product: 82C4 v: Lenovo V14-IIL serial: N/A
Mobo: LENOVO model: LNVNB161216 v: SDK0J40697 WIN serial: N/A
UEFI: LENOVO v: DKCN24WW date: 11/26/2019
Battery BAT0: charge: 35.8 Wh 100.1% condition: 35.8/35.0 Wh (102%)
model: SMP L16M2PB2 status: Full
CPU: Quad core Intel Core i5-1035G1 (-MT-MCP-)
arch: N/A cache: 6144 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 9523
clock speeds: max: 3600 MHz 1: 1105 MHz 2: 1230 MHz 3: 760 MHz
4: 1269 MHz 5: 1169 MHz 6: 811 MHz 7: 667 MHz 8: 1226 MHz
Graphics: Card: Intel Device 8a56 bus-ID: 00:02.0
Display Server: x11 (X.Org 1.20.5 )
drivers: (unloaded: modesetting,fbdev,vesa)
Resolution: 1920x1080@60.01hz
OpenGL: renderer: Mesa DRI Intel UHD Graphics (Ice Lake 4x8 GT1)
version: 4.5 Mesa 19.2.8 Direct Render: Yes
Audio: Card Intel Device 34c8 driver: snd_hda_intel bus-ID: 00:1f.3
Sound: Advanced Linux Sound Architecture v: k5.7.0-rc3+
Network: Card: Realtek Device c82f
driver: rtw_pci port: 4000 bus-ID: 01:00.0
IF: wlp1s0 state: down mac: <filter>
Drives: HDD Total Size: 256.1GB (14.3% used)
ID-1: /dev/nvme0n1 model: WDC_PC_SN520_SDAPMUW size: 256.1GB
Partition: ID-1: / size: 234G used: 35G (16%) fs: ext4 dev: /dev/nvme0n1p2
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 41.0C mobo: N/A
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 301 Uptime: 27 min Memory: 1593.9/7757.2MB
Init: systemd runlevel: 5 Gcc sys: 7.5.0
Client: Shell (bash 4.4.201) inxi: 2.3.56
ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: wlp1s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
link/ether 28:39:26:c4:51:39 brd ff:ff:ff:ff:ff:ff
4: enp0s20f0u2c4i2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 6e:8d:c1:0e:5c:5c brd ff:ff:ff:ff:ff:ff
iwconfig
lo no wireless extensions.
wlp1s0 IEEE 802.11 ESSIDff/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry short limit:7 RTS thr
Power Management
enp0s20f0u2c4i2 no wireless extensions.
sudo iwlist wlp1s0 scanning
This commands shows all the visible wifi's around so the wireless can find them.
sudo gedit /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
In this file I added the text below to use the network card since I found it on some threads, is it wrong?
auto wlp1s0
iface wlp1s0 inet dhcp
lsmod
rtwpci 24576 0
This is the module the network card should use but I assume since it isn't connected to a wifi the module is not used (this module itself uses another module though, rtw88)
Problem right now
Right now I don't see what I need to do to make this work. I've tried connecting to a wifi using the terminal with both nmcli and wpa_supplicant and neither have worked. nmcli can't find the wifi and says that the wifi is "unmanaged".
Using wpa_supplicant I installed and added the network specifications to the config file and ran:
sudo wpa_supplicant -B -i wlp1s0 -c /etc/wpa_supplicant.conf -D nl80211
Successfully initialized wpa_supplicant
But when running sudo dhclient wlp1s0 nothing happened and ps -e | grep wpa gave:
702 ? 00:00:00 wpa_supplicant
6666 ? 00:00:25 wpa_supplicant
6694 ? 00:00:25 wpa_supplicant
6702 ? 00:00:24 wpa_supplicant
I am not experienced enough in Linux system and Ubuntu to know how to decode this. From what I can see I don't understand why I am not able to connect since the network card is both visible, the drivers are there, and it can find wifi's when scanning. I assume there is something I am missing or have done wrong. Any and all input is welcome and appreciated!
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